Comment 3 for bug 1868283

when i execute command "docker ps" "ls /var/lib/docker/volumes/_data" on three controller nodes.
controller01:
docker ps -a | grep mariadb
####nothing####

ls /var/lib/docker/volumes/mariadb/_data/
aria_log.00000001 ib_buffer_pool multi-master.info mysql-bin.000016 nova_cell0/
aria_log_control ibdata1 mysql/ mysql-bin.000017 performance_schema/
.bash_history ib_logfile0 mysql-bin.000010 mysql-bin.index placement/
cinder/ ib_logfile1 mysql-bin.000011 mysql-bin.state trove/
galera.cache innobackup.backup.log mysql-bin.000012 mysql.sock xtrabackup_galera_info
glance/ ironic/ mysql-bin.000013 neutron/
grastate.dat ironic_inspector/ mysql-bin.000014 nova/
heat/ keystone/ mysql-bin.000015 nova_api/

controller02
docker ps | grep mariadb
1f02ea8856c9 10.166.16.96:4567/kolla/centos-binary-mariadb:stein "dumb-init -- kolla_…" 8 days ago Up 8 days mariadb
ls /var/lib/docker/volumes/mariadb/_data/
aria_log.00000001 ib_buffer_pool multi-master.info mysql-bin.000016 nova_cell0/
aria_log_control ibdata1 mysql/ mysql-bin.000017 performance_schema/
.bash_history ib_logfile0 mysql-bin.000010 mysql-bin.index placement/
cinder/ ib_logfile1 mysql-bin.000011 mysql-bin.state trove/
galera.cache innobackup.backup.log mysql-bin.000012 mysql.sock xtrabackup_galera_info
glance/ ironic/ mysql-bin.000013 neutron/
grastate.dat ironic_inspector/ mysql-bin.000014 nova/
heat/ keystone/ mysql-bin.000015 nova_api/

Controller03 is the same as controller02

How should I fix the MariaDB cluster？